What Happens When You Eat Too Much?


Thanksgiving dinner: turkey, stuffing, mashed potatoes, some more turkey, cranberry sauce, even more turkey? uhhh… [Turkey walks across screen.] Still have room for that pie? For now, unbutton your eating pants, flop on the couch and let’s learn why you feel so full after a big meal. [Reactions intro] Part of the reason is physical. Your stomach can stretch to a volume of about one liter – that’s the size of a burrito. When you eat a big meal, you fill your stomach to its limits, squeezing against your other organs and making your abdomen feel, well, full. Your stomach and intestines also fill with gases as you eat, adding to that swollen sensation. Each time you swallow a bit of air goes along for the ride, even more if you’re drinking soda or beer. Inside your stomach, the gas that makes your drink fizzy fills more space than the liquid it came in. Fortunately, your body has a good way to get rid of excess gas in the stomach: [burp] For some people, another uncomfortable result of a big meal is heartburn. The stomach produces hydrochloric acid to break down food. More food to break down means more acid, which can irritate the lining of the stomach and creep into the esophagus, leading to that burning feeling. Antacid tablets use bases (remember the opposite of an acid is a base) like calcium carbonate to neutralize the acid. That reaction produces more carbon dioxide, which can increase that full feeling, at least until your next burp. The other part of feeling full is mental. When you’ve had enough to eat, the body’s messenger molecules, hormones, let the brain know its time to stop. Bro! Bro!…. It’s time to stop! When you eat a high-calorie meal, cells in your intestines secrete a hormone called peptide tyrosine-tyrosine or PYY. Not PYT! That’s a Michael Jackson song! When PYY reaches the brain, it binds with receptors that give you the feeling that you’re full, or even a little queasy. Some hormones react more strongly to meals heavy in fats, carbohydrates or proteins, but they all serve the same purpose: to get you to put down that fork! So the next time your mom asks you if you want seconds, maybe take a minute to listen to what your body’s trying to tell you. Or just keep stuffing your face, I don’t care really. But don’t be surprised if you’re not feeling so good after. One thing you can never get your fill of is cool chemistry videos. Click on that subscribe button to get more every week and check out our other food videos, if you can stomach it. You see what I did there? Hah?! Eat well, chemheads! Happy Holidays!

100 Replies to “What Happens When You Eat Too Much?

  1. On December 30, 2016 I had a large cheese burger with large fries and 2 cups of a 16 ounce sprite at a restaurant then I threw up a couple minutes later because that was too much food

  2. I ate about a plate and a half full of a brunch buffet over an hour. I go home, digest, drink 20 oz of lemon water about an hour an a half later and was so so so close to throwing up. I didn’t even think I wouldn’t be able to keep that water down wtf!

  3. The best thing to do if u eat to much is keep a stapler with u and when u think u are over eating just grab the stapler and staple the hell out of those big fat smoocher u call lips or just keep a gas mask around when u let one.

  4. I'm here because i want to eat a lot…i want to eat a lot but I get full easily…

    Someone help😢

  5. I ate way to much just now . I ate four full plates of bread , chips and russians , its more than I usually eat in one day and my stomach is hurting

  6. Loved this video!
    Check out our last video for more tips about how to stop overeating this summer that really work!! –>> https://youtu.be/zkjudLktVTo

  7. The sound of you saying pie and seeing it I felt even more sick than I am becuase I ate too much fml

    I'm legit considering throwing up because I feel so sick 🤒

  8. "Eat and drink but not in excess." Coran 7:31
    http://corpus.quran.com/translation.jsp?chapter=7&verse=31

    Prophet Muhammad (pbuh) has taught us that we should fill our stomachs with 1/3 of food, 1/3 of drink and leave 1/3 for breath.

    Prophet (pbuh) said: "No human ever filled a vessel worse than the stomach. Sufficient for any son of Adam are some morsels to keep his back straight. But if it must be, then one third for his food, one third for his drink and one third for his breath."
    [Ahmad, At-Tirmidhi, An-Nasaa’I, Ibn Majah – Hadith sahih

  9. I went to Golden Corral. I ate seven buffalo wings, one fried chicken breast, two slices of pizza, one 8 oz (or 10oz) steak, three servings of fries, and three chocolate dipped strawberries.

  10. There’s youtubers taking challenges like eating 5 cheese burgers or 1000 chicken nuggets and they look ok most of the time after eating all that, but today I decided to have an extra bowl of spaghetti, I told myself no but I decided to eat because spaghetti is my favorite food, it was painful and I went to the bathroom afterwards

  11. Here's a neat trick:  if you find it hard to recognize when you're full, START your meal with a cup of water and all of your vegetables.  Then eat a fruit.  Only then eat the rest of your food.  Not saying this will always work perfectly, but it helps.  It really does, especially if some of those veg are raw.  The fiber in them helps signal to your brain that you're full.

  12. Well, i just microwaved a piece of cheese with 2 slices of salami, a kinder country and 3 Mini monte puddings (the little ones, you know)

    And i wasnt even hungry :/

  13. i came to eat too much junk food and no not like other people but i mean it Really more than i could handle i really thought i was dying but after 5 – 15 minutes of pain i finally got rid of it

  14. odd. i never stop eating and when im full. i,ll eat a again. i don.t gain tho. i must be lucky to able to eat a lot.

  15. Aww man I ate this chicken noodle soup and after five bites I was full I didn't even eat before dinner it looked so good

  16. I have a very small stomach and eating just a little bit of food makes me full. Good thing I don't like food!

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